Patna College was established in 1863. It is one of the oldest colleges in India and is affiliated to Patna University. The college offers undergraduate and postgraduate courses in a variety of subjects. It has a strong academic reputation and is known for its excellent faculty. The college also has a vibrant student life with a number of clubs and societies.
Option A: 1863 is the correct answer. Patna College was established in this year.
Option B: 1864 is incorrect. Patna College was not established in this year.
Option C: 1865 is incorrect. Patna College was not established in this year.
Option D: 1866 is incorrect. Patna College was not established in this year.